This class includes :

Decontamination of soils and groundwater at the place of pollution, either in situ or ex situ, using e.g. mechanical, chemicals or biological methods

Decontamination of industrial plants or sites, including nuclear plants and sites

Decontamination and cleaning up of surface water following accidental pollution, e.g. through collection of pollutants or through application of chemicals

Cleaning up of oil spills and other pollutions on land, in surface water, in ocean and seas, including coastal areas

Asbestos, lead paint, and other toxic material abatement

Clearing of landmines and the like (including detonation)

Other specialized pollution-control activities

This class excludes :

Treatment and disposal of non-hazardous waste, see 3821;

Treatment and disposal of hazardous waste, see 3822;

Outdoor sweeping and watering of streets, etc, see 8129.